Who
Mark Lawrence Plaumann
Director
Company insider
Files Form 4 as: Director, Mammoth Energy Services; Director, Diamondback Energy; Director, Republic Airways Holdings; Director, Rhino Resource Partners LP; Director, Icx Technologies.
In numbers
- Trades disclosed
- 61
- Buys
- 1
- Sells
- 6
- Bought
- $30K
- Sold
- $1.4M
- Companies
- 5
- Companies where not an officer
- 5
- First trade
- 9 Aug 2005
- Last trade
- 16 Sep 2026
- Last filed
- 17 Sep 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 16 Sep 2026filed 17 Sep 2026 | TUSK Mammoth Energy ServicesOilfield services | SEC FORM 4 Bought | $15K5,000 at $3.00 | filing |
| 16 Sep 2026filed 17 Sep 2026 | TUSK Mammoth Energy ServicesOilfield services | SEC FORM 4 Bought | $15K5,000 at $3.00 | filing |
| 21 Aug 2026filed 24 Aug 2026 | FANG Diamondback EnergyOil & Gas E&P | SEC FORM 4 Sold | $211K1,000 at $210.58 | filing |
| 21 Aug 2026filed 24 Aug 2026 | FANG Diamondback EnergyOil & Gas E&P | SEC FORM 4 Sold | $211K1,000 at $210.58 | filing |
| 9 Jun 2026filed 10 Jun 2026 | FANG Diamondback EnergyOil & Gas E&P | SEC FORM 4 Sold | $98K500 at $196.50 | filing |
| 9 Jun 2026filed 10 Jun 2026 | FANG Diamondback EnergyOil & Gas E&P | SEC FORM 4 Sold | $98K500 at $196.50 | filing |
| 20 May 2026filed 21 May 2026 | FANG Diamondback EnergyOil & Gas E&P | SEC FORM 4 Code A | —982 at $0.00 | filing |
| 20 May 2026filed 21 May 2026 | FANG Diamondback EnergyOil & Gas E&P | SEC FORM 4 Code A | —982 at $0.00 | filing |
| 19 Jun 2025filed 23 Jun 2025 | FANG Diamondback EnergyOil & Gas E&P | SEC FORM 4 Code J | —2,965 at $0.00 | filing |
| 21 May 2025filed 22 May 2025 | FANG Diamondback EnergyOil & Gas E&P | SEC FORM 4 Code A | —1,417 at $0.00 | filing |
| 5 Dec 2024filed 9 Dec 2024 | FANG Diamondback EnergyOil & Gas E&P | SEC FORM 4 Code G | —100 at $0.00 | filing |
| 13 Nov 2024filed 14 Nov 2024 | FANG Diamondback EnergyOil & Gas E&P | SEC FORM 4 Sold | $208K1,150 at $181.00 | filing |
| 13 Nov 2024filed 14 Nov 2024 | FANG Diamondback EnergyOil & Gas E&P | SEC FORM 4 Code G | —2,310 at $0.00 | filing |
| 13 Nov 2024filed 14 Nov 2024 | FANG Diamondback EnergyOil & Gas E&P | SEC FORM 4 Sold | $43K240 at $181.00 | filing |
| 12 Nov 2024filed 14 Nov 2024 | FANG Diamondback EnergyOil & Gas E&P | SEC FORM 4 Code J | —11,724 at $0.00 | filing |
| 12 Nov 2024filed 14 Nov 2024 | FANG Diamondback EnergyOil & Gas E&P | SEC FORM 4 Code J | —5,862 at $0.00 | filing |
| 6 Jun 2024filed 10 Jun 2024 | FANG Diamondback EnergyOil & Gas E&P | SEC FORM 4 Code A | —1,035 at $0.00 | filing |
| 8 Jun 2023filed 12 Jun 2023 | FANG Diamondback EnergyOil & Gas E&P | SEC FORM 4 Code A | —1,527 at $0.00 | filing |
| 9 Jun 2022filed 13 Jun 2022 | FANG Diamondback EnergyOil & Gas E&P | SEC FORM 4 Code A | —1,274 at $0.00 | filing |
| 3 Jun 2021filed 7 Jun 2021 | FANG Diamondback EnergyOil & Gas E&P | SEC FORM 4 Code A | —2,435 at $0.00 | filing |
News
Mammoth Energy Services (NASDAQ:TUSK) Share Price Crosses Below Fifty Day Moving Average – Should You Sell?TUSK · tickerreport.com · 24 Oct 2026Diamondback Energy Honor & Serve Luncheon Luncheon Permian Basin first responders First responder first responder appreciation event celebrationFANG · firstalert7.com · 23 Oct 2026Reviewing SEACOR Marine (NYSE:SMHI) & Mammoth Energy Services (NASDAQ:TUSK)TUSK · themarketsdaily.com · 21 Oct 2026Here Are Thursday's Top Wall Street Analyst Research Calls: AngloGold Ashanti, Bank of America, Cirrus Logic, Crocs, Diamondback Energy, Devon Energy, Netflix, PayPal, Spotify Technolgy , and MoreFANG · aol.com · 15 Oct 2026SEACOR Marine (NYSE:SMHI) and Mammoth Energy Services (NASDAQ:TUSK) Financial ReviewTUSK · tickerreport.com · 15 Oct 2026Historic Diamondback Energy pump jack finds new home at Permian Basin Petroleum MuseumFANG · firstalert7.com · 13 Oct 2026
0 headlines in the last 90 days name Mark Lawrence Plaumann; 6 articles from the last 14 days about the 2 companies they traded most, at most three about any one of them.